Solving problem N4653 Bayesian probability theory

Solving problem N4653 Bayesian probability theory

4653. Parts are processed on two machines, of which the first produces 3 times more parts than the second. In this case, the probability of marriage for the first machine is 0.1, for the second - 0.15. One randomly taken part turned out to be standard. Find the probability that it was processed on the first machine.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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